Answers

I'm not sure of the full background and context of your upgrade process so I would definitely recommend running this by your sales team, who might refer you to the WRC.

A normal Caché based HealthShare to Caché based HealthShare upgrade won't affect your user databases so why do you need to restore backups at all? What kind of databases are you concerned about? Through your upgrade process won't the databases be preserved and converted as necessary? You can then compile after the conversion.

Have you reviewed the IRIS adoption document available on the WRC distributions page, and have you received a copy of the Health Connect conversion guide from the WRC or your sales team?

Thank you for clarifying. HealthShare Health Connect 2019.1 is built with IRIS so it will not accept a Caché online backup. A CACHE.DAT file can be renamed to IRIS.DAT to be used by IRIS which is documented in the IRIS adoption guide.

You need to be on HealthShare core 15.03 or later to take advantage of the in-place conversion for HealthShare Health Connect. I believe HealthShare Health Connect built with Caché 2015.2.2 is not a new enough HealthShare core version.

Outside of that, it may be possible to manually convert to InterSystems IRIS but I presume that would be more effort than going through two supported upgrades.